题目内容
当x≥-3时,化简
-
得( )
(x+3)2 |
3 | (x-3)3 |
A.6 | B.2x | C.6或-2x | D.-2x或6或2x |
∵x≥-3,
∴
-
=x+3-(x-3)
=6.
故选A.
∴
(x+3)2 |
3 | (x-3)3 |
=x+3-(x-3)
=6.
故选A.
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题目内容
(x+3)2 |
3 | (x-3)3 |
A.6 | B.2x | C.6或-2x | D.-2x或6或2x |
(x+3)2 |
3 | (x-3)3 |